Sennheiser HD-558 Stereo Headphones available. If you're looking at this post, you already know what these are. Super lightweight with comfortable velour earpads. 15hz-28khz freq response, 50 ohm impedance, 112 SPL. In pretty good clean condition and ready for use. Pics of actual headphones. I'll even include a 1/4 to mini adapter. I also have a set of HD570 cans for the same price($50). If interested, text/call me or reply to this CL post to see/test item. Here in South Sac. Thanks in advance. Two7nine two2two three5six One.